| 摘要 |
An apparatus for transmitting broadcast signals comprises: a Forward Error Correction, FEC, encoder (104200) to encode Layer 1, L1, signalling information for data transmitted in at least one Physical Layer Path, PLP; a Quadrature Amplitude Modulation, QAM, mapper (45080) to QAM map first and second data in each PLP with M-QAM constellations into a pair of QAM symbols, wherein M = 16; a Multi-input Multi-Output, MIMO, processor (45090) to MIMO process the QAM mapped first and second data, wherein the MIMO processing is performed by applying a rotation matrix to said pair of QAM symbols; a time interleaver (45100) to time interleave the MIMO processed first and second data; a frame builder (45020) to build first and second signal frames including the time interleaved first and second data and the encoded L1 signalling information; a frequency interleaver (45030) to frequency interleave data in the built first and second signal frames; a modulator (45040) to modulate the frequency interleaved data in the first and second signal frames by an Orthogonal Frequency Division Multiplexing, OFDM, method; and a transmitter to transmit the broadcast signals including the modulated data. An apparatus for receiving broadcast signals comprises means correspondent to the means included in the apparatus for transmitting broadcast signals. |
